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914World.com _ 914World Garage _ Sporatic at 2400-2800rpms

Posted by: HotWat Jul 29 2006, 09:30 PM

My '75 2.0 developed a hesitation/sputtering between 2400 - 2800 rpms which is driving me crazy. The car was serviced a few months ago (valves, etc). I have electronic ignition. Any ideas. Thanks.

Posted by: Rand Jul 29 2006, 11:42 PM

If it only sputters in that rpm range, and clears back up above, it makes me think of a worn TPS (throttle position sensor - the gadget mounted on the side of the throttle-body).

They contacts wear... especially in the most-used range. At any rate, learn more about it here:

http://members.rennlist.com/pbanders/

Posted by: Bleyseng Jul 30 2006, 08:29 AM

To check the TPS just unplug it. Its the big 5 prong thingy on the Throtte body.
If it goes away when you unplug it and drive it then you know the tps is dirty or dead.

If that doesn't fix it, check for a sticking advance plate in the dizzy.

Posted by: HotWat Jul 30 2006, 07:38 PM

QUOTE(Bleyseng @ Jul 30 2006, 07:29 AM)

To check the TPS just unplug it. Its the big 5 prong thingy on the Throtte body.
If it goes away when you unplug it and drive it then you know the tps is dirty or dead.

If that doesn't fix it, check for a sticking advance plate in the dizzy.

Unplugged the TPS and made no difference.
What the heck is the dizzy.

Posted by: Bleyseng Jul 30 2006, 09:24 PM

dizzy= distributor

check the advance plate for smooth operation as rust/nolube will make it stick

Posted by: Dr. Roger Aug 6 2006, 03:17 PM

so what was the problem?

has it been resolved?
how?

inquiring minds want to know. =-)

Posted by: rmital Aug 6 2006, 03:32 PM

QUOTE(Bleyseng @ Jul 30 2006, 07:24 PM)

check the advance plate for smooth operation as rust/nolube will make it stick

...discription on how to lube the advance plate??....anyone....

Thanks,
Ray

Posted by: Dr. Roger Aug 6 2006, 03:53 PM

this guy does a good job of rebuilding a 010 distributor. great pics.

yours is not like this one but some of the details are the same.

just a matter of do you want to pull your distributor for a rebuild or pull the contact plate to get at the advance weight assembly for cleaning and lubing.

good luck.

Posted by: rmital Aug 6 2006, 05:53 PM

QUOTE(Dr. Roger @ Aug 6 2006, 01:53 PM)

this guy does a good job of rebuilding a 010 distributor. great pics.

sorry but...what guy? pics...?

Posted by: Dr. Roger Aug 6 2006, 05:56 PM

whoops..... =-P

http://www.glenn-ring.com/010/